I've bought loads more Zojirushi things in the meantime and have loved every one, but none except the water boiler (a recent addition) get near the same amount of use as the rice cooker.
I've been "cooking" all food with extremely basic rice cookers for the last years. More advanced ones are tempting but Joshirushi looks a bit complicated, I have a taste for dumb appliances.
Also, under these brands I don't find rice cookers small enough. My current one (3 cups, I guess) is perfect for rice and vegetables for one meal.
I've heard many things about how their keep warm feature is far, far superior with some quoting up to one week. What's been your experience with the keep warm? Most other rice cookers I've used are okay at keeping things warm but struggle with not drying out the rice in contact with the bowl.
The keep warm feature is pretty great. I've never done anything as crazy as a week, but the most I've gone is 7 hours and it was basically indistinguishable from freshly cooked!